Louis J. Siegel, D.O.

I have always been fascinated by science, but it was not until I served as an emergency medical technician at my local fire department that I decided to pursue a career in medicine. It was rewarding to have such a positive impact on members of my community.

Dermatology appeals to me because it is a medical specialty that relies on visuals. By looking at a patient’s skin, I can diagnose conditions that affect other parts of the body. For example, some people who have psoriasis also have psoriatic arthritis, which is a type of chronic arthritis that affects the joints. Patients with psoriasis may also have eye and gastrointestinal diseases.

I treat patients of all ages. I offer skin cancer screening and remove skin growths, including those that are cancerous; cysts; and lipomas, which are benign tumors composed of fatty tissue. In addition, I perform cosmetic procedures, such as the botulinum toxin therapies Botox and Dysport, to reduce frown lines and crow’s-feet. I also offer fillers, which add fullness to the cheeks, areas under the eyes, and other parts of the face.

Other conditions I manage include eczema, warts, herpes, psoriasis, and impetigo, which is a bacterial skin infection common in children. I recommend certain hygiene practices to manage eczema and prescribe antiviral medications to suppress herpes. I also prescribe creams and administer liquid nitrogen to remove warts. To manage psoriasis, I recommend dietary changes and prescribe creams, light therapy, and medication. I also offer screening for psoriatic arthritis. In addition, I treat people who have hair and nail disorders.

To provide comprehensive treatment, I partner with other specialists at NYU Langone. These include rheumatologists, infectious disease specialists, oncologists, geneticists, allergists, and pediatricians.

I take the time to educate patients about their conditions and answer all their questions. When patients understand their condition, they take a more active role in their treatment, which helps to improve outcomes. It is rewarding to use my knowledge to diagnose a variety of conditions.